The National Hurricane Center was monitoring two systems in the Atlantic and Caribbean, giving each a 20 percent chance of developing into a tropical depression or storm over the next five days. (Credit: NHC)

MONDAY UPDATE: Moisture associated with the tail-end of Post-Tropical Storm Hermine, still drifting north off the Mid-Atlantic coast, is expected to raise rain chances in Palm Beach today to 60 percent, according to the National Weather Service in Miami. Chances fall to 50 percent on Tuesday and 40 percent on Wednesday.

TROPICS: A new area of disturbed weather popped up on the National Hurricane Center Tropical Weather Outlook map today, southwest of the Cape Verde Islands. But forecast models were not enthusiastic about developing the system due to an outbreak of dry air across the Atlantic, according to hurricane expert Jeff Masters at Weather Underground.

Invest 92L, meanwhile, has entered the Caribbean on a westerly track after dumping heavy rain and creating wind gusts as high as 57 mph in the Lesser Antilles.

Forecasters at the NHC gave both systems a 20 percent chance of developing over the next five days.

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ORIGINAL POST: A tropical system about to enter the Caribbean has been blowing up impressive levels of convection — a worrisome sign this time of the year — but forecasters at the National Hurricane Center in Miami say the disturbance should stay well to the south of Florida.

The low, Invest 92L, was producing winds of tropical storm force as it closes in on the Lesser Antilles, moving west at 15-20 mph, the NHC said. It’s another long-tracking Cape Verde system that spent much of the week fighting to survive dry air across the Central Atlantic.

The storm will produce gusty winds and heavy rains across the Lesser Antilles through Monday, said forecast, who gave the area a 30 percent chance of becoming a tropical depression — or Tropical Storm Ian — over the next five days.

Post-Tropical Cyclone Hermine, meanwhile, was still causing dangerous storm surge in the Mid-Atlantic, from Virginia to New Jersey, as it spins off the tip of Long Island, New York with winds of 65 mph. Tropical storm warnings were still in effect for parts of the Northeast Coast.

Forecast path for Invest 92L keeps the system in the Caribbean Sea. (Credit: NHC)

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Hermine is still impacting Florida weather, though, and may continue to until mid-week.

A typical summer pattern looks to be locked in for Palm Beach and South Florida for the holiday and the upcoming week, the National Weather Service in Miami said. Rain chances are at 20 percent today but rise to 50 percent on Labor Day with easterly winds.

The uptick in rain chances is due to a surface trough settling down the Florida peninsula from the panhandle — a batch of moisture left over from the tail end of Hermine.

Not bad weather for beach goers overall — but Hermine may cause an elevated risk of rip currents, according to forecasters, as it sends an ocean swell toward the Palm Beach coast on Monday and Tuesday.

RECORD WATCH: Friday’s low at Palm Beach International Airport, 82, broke the record for warmest minimum temperature for the date of 81 degrees, set in 1952.